package com.fushihua.y2015.m06.d08;

public class StringIsNullTest {
	public static void main(String[] args) {
		String str = null;
		try{
		if(str == null || str.equals("")){
			System.out.println("OK");
		}
		}catch(Exception e){
			e.printStackTrace();
		}
	}
}
